Factor out the code for determining when symblic addresses
require RIP-relative addressing and use it to fix a bug
in X86FastISel in x86-64 PIC mode, where it was trying to
use base/index registers with RIP-relative addresses. This
fixes a bunch of x86-64 testsuite failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56676 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86ISelDAGToDAG.cpp b/lib/Target/X86/X86ISelDAGToDAG.cpp
index f72392d..9fe19ab 100644
--- a/lib/Target/X86/X86ISelDAGToDAG.cpp
+++ b/lib/Target/X86/X86ISelDAGToDAG.cpp
@@ -819,25 +819,21 @@
         GlobalValue *GV = G->getGlobal();
         AM.GV = GV;
         AM.Disp += G->getOffset();
-        AM.isRIPRel = TM.getRelocationModel() != Reloc::Static &&
-          Subtarget->isPICStyleRIPRel();
+        AM.isRIPRel = TM.symbolicAddressesAreRIPRel();
         return false;
       } else if (ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(N0)) {
         AM.CP = CP->getConstVal();
         AM.Align = CP->getAlignment();
         AM.Disp += CP->getOffset();
-        AM.isRIPRel = TM.getRelocationModel() != Reloc::Static &&
-          Subtarget->isPICStyleRIPRel();
+        AM.isRIPRel = TM.symbolicAddressesAreRIPRel();
         return false;
       } else if (ExternalSymbolSDNode *S =dyn_cast<ExternalSymbolSDNode>(N0)) {
         AM.ES = S->getSymbol();
-        AM.isRIPRel = TM.getRelocationModel() != Reloc::Static &&
-          Subtarget->isPICStyleRIPRel();
+        AM.isRIPRel = TM.symbolicAddressesAreRIPRel();
         return false;
       } else if (JumpTableSDNode *J = dyn_cast<JumpTableSDNode>(N0)) {
         AM.JT = J->getIndex();
-        AM.isRIPRel = TM.getRelocationModel() != Reloc::Static &&
-          Subtarget->isPICStyleRIPRel();
+        AM.isRIPRel = TM.symbolicAddressesAreRIPRel();
         return false;
       }
     }